Waste bin



FIG. 1 is a top, front, right side perspective view showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof, the right side being a mirror image; and,

FIG. 5 is a top plan view thereof.

The bottom view is not shown and forms no part of the claimed design. 

The ornamental design for a waste bin, as shown and described. 